123880660 has 12 divisors (see below), whose sum is σ = 260149428. Its totient is φ = 49552256.

The previous prime is 123880637. The next prime is 123880661. The reversal of 123880660 is 66088321.

It can be written as a sum of positive squares in 2 ways, for example, as 19963024 + 103917636 = 4468^2 + 10194^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123880661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096997 + ... + 3097036.

It is an arithmetic number, because the mean of its divisors is an integer number (21679119).

Almost surely, 2^123880660 is an apocalyptic number.

123880660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123880660 is an abundant number, since it is smaller than the sum of its proper divisors (136268768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123880660 is a wasteful number, since it uses less digits than its factorization.

123880660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194042 (or 6194040 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 123880660 is about 11130.1689115664. The cubic root of 123880660 is about 498.5030695375.

The spelling of 123880660 in words is "one hundred twenty-three million, eight hundred eighty thousand, six hundred sixty".